The time machine is set to Sunday in Kansas City. The matchup we look forward to this weekend is the game we will revisit years from now.

Taking a deep dive look at the NFL's best rivalry So as we head into Sunday night's highly-anticipated AFC Championship Game, today the question is, what kind of rivalry is Patrick Mahomes vs. Josh Allen?

The Patriots' Tom Brady won his first two playoff matchups against Peyton Manning before losing the final three in the only QB rivalry with five postseason meetings. Brady split four matchups with Baltimore's Joe Flacco with the Patriots and Ravens alternating wins in those matchups that came in a span of six seasons.